10 Maneiras bizarras de gerar eletricidade

10 Bizarre ways of Generating Electricity
The increasing demands and conventional energy sources increasingly scarce ask creative ideas to generate electricity .

1. Cows

Not so much the animal itself, but what it leaves behind that could serve as a source of electricity. In 2008 , scientists at the University of Texas calculated that manure from livestock could produce 100 billion kW / h of electricity annually , which at the time was equivalent to 3 % of U.S. demand .
Decomposed and burnt dung produces energy that is converted into electricity . This method produces less CO2 than burning coal and also prevents emissions of greenhouse gases that manure releases into the atmosphere when it is simply left to decay.

2. Street
Large metropolitan areas like New York and Tokyo , regularly suffer from extreme heat in the summer because the dark asphalt streets absorbs the sunlight and the temperature rises , sometimes reaching 45 degrees Celsius . The Dutch company Ooms developed a ' road energy system ' which is able to collect this energy using water pipes embedded in asphalt. The method is comparable to systems for pumping heat from underground sources , but here is the asphalt - not the earth - that heats the water in the pipes .
This method of energy production is already used in Israel.

3. People

The human body generates between 60 and 100 watts of power - about the same amount of an ordinary light bulb . About 250 000 of these ' bulbs ' human walking pass through Stockholm Central Station each day , producing enough heat to raise the local temperature to 22-25 degrees centigrade .
The Swedish real estate company Jernhusen developed a method to extract the station excess body heat . This energy heats the water which, in turn, is used to heat a building called Kungsbrohuset . This complex will get 30 % of your heating people in Stockholm Central Station .

4. Trains

Regenerative braking is a method of generating energy. A vehicle loses speed converting its kinetic energy into electricity , which can be reused immediately or stored for later. This mechanism is already used on buses or electric cars .
Now , the trains are embarking on this wave of energy production . In 2010 , the city of Philadelphia in the United States , launched a project that uses the energy from braking subway cars city to power other trains and maybe even the power grid .
A huge battery will capture the kinetic energy and take it to the power generators . The city of Warsaw in Poland , launched a similar project in 2011 which should be ready in late 2013 . The ABB Automation and Power Technologies , which is a supplier of the project , says that the energy that is collected from a single subway car polish is enough to power a 60-watt bulb for over a week.

5. Lemons

Besides being part of a healthy diet , lemons , potatoes, apples or any other fruit or vegetable acid are able to act as a stack tolerable - although you would need about 5000 of them to light a bulb 1.2 watts . The lemon cells are made by inserting two different metallic objects on a lemon . Energy is generated by chemical changes in the metals when they are exposed to citric acid .

6. Green Gyms

" Without struggle there is no result . " This is a well known mantra of gym goers . Academies In ' green ' , the mantra should be : " No sweat there is no power ." Bikes , treadmills and ellipticals can be connected to generators that transform kinetic energy into electricity.
An academy in Berlin, Germany , has installed special outlets in their gym equipment to allow people to recharge their cell phones or MP3 player with the energy they generate while exercising . Other academies sustainable emerged in Hong Kong , Australia and the USA . According to Steven Clinefelter , company president Motorwave Group, which is headquartered in Hong Kong and introduced this equipment in gyms in 2008 , a person has the capacity to produce 50 watts of electricity when you exercise at a moderate pace . Theoretically , 20 minutes pedaling on the bike , for example , generate enough energy to dry your hair after bathing post- workout .

7. Dance

The clubs, with their equipment sound and light shows are voracious consumers of electricity. But now the dance floors of nightclubs are excellent places to produce energy as well. They are fitted with special springs which , when pressed by people dancing , generate electric current. This current is stored in batteries and used to operate the apparatus of clubs .
The nightclub Bar Surya , in London , installed the system and, according to its owner , Andrew Chalralambous , the floor of the dance floor can generate enough energy to meet 60 % of the energy needs of the house .

8. Rain
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In 2008 , scientists from CEA / Leti - Minatec , a research institute specializing in microelectronics , in Grenoble , France , has developed a system able to collect the energy produced by a single drop of rain falling . The vibrations of a raindrop are captured by sensors which convert the impact of drops into electricity . According to the findings , a raindrop common with diameters ranging from 1 to 5 mm , could provide up to 12 milliwatts of power . In general , drops falling slowly generate more energy because the drops fall faster lose impact due to spills .

9. Golf

A golfer needs a lot of energy to propel the bat . This huge kinetic energy could be collected and stored for later use . The designer Mac Funamizu autonomous concepts had the idea of putting a collector of this type on the handle of the bat . Later , the golfer can reuse that energy to charge your mobile , laptop or other electronic devices .

10. Trees
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When researchers manufacturer of electronic components MagCap Engineering , Massachusetts , United States , set nails connected by wires to the trunks of trees and a conductor on the ground , they found that living trees are a poor source of electricity , created by the difference in pH between soil and tree. Later , scientists at the University of Washington were able to operate an electric circuit powered by trees . The amount of electricity may be tiny , but scientists believe it would be enough to power wireless sensors that can help analyze ecological conditions or alert for forest fires.

Source : sustainability.allianz.com

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